Home / 3,936.98-5,432.85-2,257.18

Finding the Fourth Proportional to 3,936.98, 5,432.85 and 2,257.18

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Solution

The fourth proportional to 3,936.98, 5,432.85 and 2,257.18 is: 3,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.98 : 5,432.85 = 2,257.18 : x
  2. Step 2: Convert to fraction form
    3,936.98/5,432.85 = 2,257.18/x
  3. Step 3: Cross multiply
    3,936.98x = 5,432.85 × 2,257.18
  4. Step 4: Simplify right side
    3,936.98x = 12,262,920.36
  5. Step 5: Solve for x
    x = 12,262,920.36/3,936.98
  6. Step 6: Final answer
    x = 3,114.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.